Stirring device for agitating liquids



Jan.. 9, 1923., 1,111,813.

W. LEES ET AL. STIHRING DEVICE FOR AGITATING LIQUIDS. man FEB. u, 192x.4 SHEETS-SHEET r.

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STIRRING ADEVICE FOR AGITATING LIQUIDS.

FILED FEB. l?, 1921. 4 SHEETS-SHEET 2.A

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STIBRING DEVICE FOR AGITAUNG LIQUIDS.

FILED FEB. I7. 192i. 4 SHEETS-SHEET 3.

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. LEES ET AL. STIRRING DEVICE FORAGITATING LIQUIDS.

.-Jan., 9, 1923.

4 SHEETS-SHEET 4'.

Patented ilan., 9, ltld..

(n .i i i i i la i "WLLIAIl/ILEES, OF HOLLJINWOOID, ANDv WALTER MOORS,OF RUNCORN, ENGLAND.'

STIRRING DEVICE FORy AGITATNG LQUIDS.

Application filed 4lebruary 1'?, 1921. Serial No. 445,793. i

To all fui/tom it may conce/m:

Be it known that we, lViLLrA'Mi Lluis and 1*JVM/rm: ll'loons, subjectsot the King ol Great Britain and ireland, and residents otl-liollinwood, in rthe county ot l'rancaster, llngland, and iuncorn, inthe county ot (hester, lEngland, respectively, have .invented certainimprovements in tiltirring Devices 'for Agitating Liquids, 'tor which wehave tiled an application in (lreat Britain VNovember t, i919, and otwhich the following a specification. v f

This invention relates to improvements in stirring` devices toragitating liquidsem ployed in various coimnercial and manu'tacA4 turingprocesses such as in scouring, bleaching, dyeing and analogousoperations in the treatment ot textile and other materials and Afabrics,and in the inning, leaching and tanningl oit hides, skins and. likegoods.

`Uur invention has reference to an improved agitatiug device consistingot a trame or paddle adapted to be given a reciprocating and rising` andtallingmovement-or in some cases a reciprocating movement only-and oneor more vanes or iaps pivoted` to said ,trame adapted to move about itor their pivotal centres between limiting stops at each side o suchcentres so as to agitato the liquid and prevent the deposition at thebottom of the tank or other vessel ot the solid matter held insuspension in the liquid, `the aforesaid means being combined with anysuitable or known means tor giving the necessary motion to the iframe orpaddle.

@ur invention will be tully describedwvith reference to theaccompanying` drawing in which-'H i F l is an end elevation of one formof thc apparatus constructed in accordance with our invention,

Fig. 2, side elevation ot same,

Fig. 3, plan, i v i i Fig. el, plan ot aniodificd 'torni of the device,i

Fig. 5, sectional elevation of thedevice shown in Fig. a on line l-l otsuch figure,

Fig. 6, plan ot amodiiied torni of the device indicated in Figs. 4l and5 and Fig 7, side elevation of same,

Fig. 8, side elevation ot an arrangement similar to that shown in Figs1l to 3 indicat ingv the means ol.l communicating motion trom one `paddleor frame vto another or others,

Fig. 9, plan `of same partly in section, Figs. l0 and 1l. side elevationand plan,

*respectively otI modified means to those shown in F 8 and 9` 'forreciprocating a plurality oi. the paddle frames,

Fig. l2 end elevation ot' a further modiied torni oit the device,

Fig. 1.25 side elevation oil saine and Fig. l/l end elevation ot anothermodified termoli the device.

In all the foregoing figures similar reference characters indicatecorresponding parts.

ln carrying out our invention with reference to Figs. l to 3 arepresents the outline olf` a tank .the liquid contained in which is tobe agitated and Z; a paddle or frame oi skeleton formation adapted to begiven a reciprocating and rising` and falling n'iovement or, in otherwords, a backward and forward `curvilinear movement in which said framerises and falls from a neutral `position towards and `trom each end. Toenable this to be done the 'frame is suspended atone end yby a pair oilinks c or other equivalent `means, the upper ends of which are pro-`vided with or secured to studs Z supported in bearings e carried at theupper edge ot the tank a or at a still higher level, the lower ends oithe links supporting the trame by studs f. rllie opposite end of theiframe sup ports a shaft g to which the lower end of a second link h. iscouplechthe upper end ot' such link being suitably pivoted on a pin orshattz' carried by a bracket i. The link L is provided with a .Fixedcollar or clip m to which `is coupled one end oic a connecting rod i1,the other end ot which is, in turn. connectedto a crank pin o in a crankdisc p driven by chain 9 and chain wheels rirom a line shaft s. The link71, and its connections are .ada'jrited to give the reciprocating andrising and falling movement to the iframe or paddle a, but we would haveit understood that we donot confine ourselves to the means by which saidmovement is elected as it will be obvious that this may be carried outin many ways without departing from the essential -features ot ourinventiorn ln conjunction with the trame or paddle o we employ one or aplurality ot flaps or vanos t each ot'lwhich consists of a board orplate ot suitable material pivoted at each endjat one oi its edges tothe frame a at u. These vanes are quite i'reel to move about theirpivots but their motion in either direction is limited by stops v. Theangular movement is substantially .through degrees. rtheir action issuch that in moving in either direction they rest against their stops atthe upper edges and so litt or lorce the liquid in the direction inwhich they and l their supporting frame lare moving for the time being.l@n the reverse movement the vanes change their position and act on theliquid in a similar manner. There is thus a constanty agitation ot' theliquid which prevents the deposition oit solid matter within the tank.During the movement the liquid displaced can pass betweenthe vanes butin so passing is bound to be agitated thereby. rlhe frame I) may bestitfened by cross or diagonal stays to.

In Figs. 4tand a modification of the device .is shown asapplied by acircular tank. In these figures the agitating action is carried out byan oscillating horizontal motion about a vertical shaft a? to which issecured a central boss y carrying radially extending trames ot skeletonforn'iation to which the vanes or flaps 25 are pivoted in the sainemanner as before and limited in their movements by stops f1.1. In Figs.6 and 7 a. similar construction to that shown in Figs. #t and 5 is shownapplied to a rectangular tank. In Figs. 4 to T any suitable means may beemployed for giving an oscillating horizontal mot-ionabout the axialcentre ot the shaft In Figs. 8 and 9 we have indicated means lorcommunicating motion to two or more trames I in a corresponding numberot tanks (t. These means consist in coupling the .trames or paddles l inthe separate tanks by connecting rods 3 passing through slots -i in thewalls of the tanks. In Figs. 10 and 11 a number ol" frames l) areoperated simultaneously by other means consisting of a rod 5reciprocated from any suitable source coupled to bell crank leversG'mounted at the upper ends of' shaft 7 carried in bearings 8 within thetanks a, the lower ends of said shafts having' fixed to them arms 9slotted at their l'ree ends to engage with studs 10 carried by the'trames L. The second arms ot the bell crank levers are coupled by links11 to single arms 12 on a second set ot shatfts 18 which communicatemotion by slotted arms 9 to the trames in a series ot' tanks alongsidethose first mentioned. A series of the trames shown in Figs. il, 5, 6and 7, may be oscillated simultaneously by couplingrods orconnecting-rods. and levers secured on their rockshats in a similarmanner to the levers 6 shown in Figs. 10 and 11 and such levers may becoupled or connected by ro't s l1, as shown in Figs. l0 and l1.

In the modification shownin Figs. 12 and 13 the frame Z) is supported ontwo arms 14 pivoted at 15 to the one end of the tank a. The frame b isslidable on the arms 14 by connecting one of its ends to crank pins 1.6

carried by discs 1T tixed on a shaft 18, such shaft being supported inthe lower ends of a pair ot suspension links c pivoted respectively on apin (l and sha't't all, the latter having fixed on it a chain wheel 19driving one ot the discs IT-whieh is provided with teeth-by a chain 2l).Shaft (/1 drives worm wheel 21 from worm 22 on a shaft 23 on which thefast and loose pulleys 24 are mounted rThe action of the parts is togive, a rising and falling movement to the frame o about the pivotalpoints 15 and a reciprocating movement on the arms 14, during which the'anes l' move from side to side as previously described to agitatel theliquid.

In the modification shown `in Fig. 14 the 'trame is pivoted on or fixedto a horizon- -tal shatt', which in the latter instance is given anoscillating horizontal motion by arm 2G operated in any suitable way. Inthe former case the latter is connected to they trame. The vanes t arepivoted to frame as betore but instead ot moving from side, to side theymove trom` top to bottom or vice Vversa as 'traine 7) is rocked. Stops climit the movement ot the vanes as before. ln each form oil the devicehereinbelore described.I each 'trame is moved in a horizontal plane in atank. and each trame has vanes f pivoted to the lower parts ot it andadapted to rest on stops r at the ends ot their tilting movements. Thetrames may be moved horizontally in straight lilies or on the arcs otcircles. The vtrames which are moved on circular arcs can he coupledtogether by connecting-rods in a similar manner to those which move instraight lines.

lllhat we claim as our invention and de.- sire to secure by LettersPatent is:N

1. The combination, with a tank for liquidr` ot a vertical rock-shaftarranged in the tank` trames supported by the rock-shaft and extendinglongitudinally upon opposite sides ot it. tilting vanes having theirlower portions pivoted to the lower parts of the said lower parts ot'vtrames7 and stops on the Jframes which limit the tilting movements ofthe vanes.

Q. The combination. with a tank for liq uid. or a vertical rock-shaftarranged in the tank. trames supported by the rock-shaft and arrangedradially of it in the form of a cross`r tilting vanes having their lowerportions pivoted to the lower parts ot' the said trames` and stops onthe frames which limit the tilting movement-s of the vanes.

In testimony whereof we have hereunto set our hands in the presence oftwo witnesses.

IVILLIAM LEES. IVAIJTER MOORS. IVitnesses i i IViLLIAM H. TAYLoR,

M. E. Rairsno'i'roM.

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